Etna volcano - eruption update

Aggiornato: 7 dic. 2021 12:42 GMT -

weak but constant strombolian activity continues

Update Mon 06 Dec 2021 18:14
Continuous ash emissions from Etna today (image: Boris Behncke/twitter)
Continuous ash emissions from Etna today (image: Boris Behncke/twitter)
Ongoing strombolian activity is now in progress from the South-East crater characterized by weak ash emissions extending to the E-NE of the volcano today.
A volcanic tremor has slowly increased, but remains at medium values detected at 2700 meters altitude.
No significant ground deformation was recorded.

strombolian activity started and may trigger paroxysm

Update Sat 04 Dec 2021 18:40
Strombolian activity at Etna volcano tonight (image: Boris Behncke/twitter)
Strombolian activity at Etna volcano tonight (image: Boris Behncke/twitter)
After a six weeks since the last strong eruptive episode (classified as paroxysm), it seems the activity to have picked up again.
The volcano observatory in Catania (INGV) reported that strombolian explosion started from the South-East crater at 16:10 local time today.
The instruments detected a strongly rising signal of volcanic tremor indicating rapid magma flux towards the surface, typical sign for an impending series of paroxysm in the coming days, weeks.

Weak explosions reported from Northeast crater

Update Sat 20 Nov 2021 17:49
Steam plumes rising from Etna's Bocca Nuova summit crater (image: INGV Catania webcam)
Steam plumes rising from Etna's Bocca Nuova summit crater (image: INGV Catania webcam)
In the past weeks, Etna has been more or less calm. Today, small intermittent explosions resumed at the North-East crater, the volcano observatory in Catania (INGV) reported.
According to a report, these explosions began at 11.16 a.m. local time and have been producing small ash plumes that dispersed quickly in the area of the summit craters. Volcanic tremor shows no significant variations and remains at low to medium levels.
Apart from this, the Bocca Nuova seems to be the most active crater at the moment, producing dense steam plumes with some pulsating activity as can be seen in the image attached.


Occasional ash emissions from SE crater

Update Thu 28 Oct 2021 18:49
Ash emission from Etna's SE crater (image: Boris Behncke / facebook)
Ash emission from Etna's SE crater (image: Boris Behncke / facebook)
Current tremor signal at Etna's ECPN station (image: INGV Catania)
Current tremor signal at Etna's ECPN station (image: INGV Catania)
After last Saturday's paroxysm, the volcano has not remained completely calm, but produces ash emissions from the New SE crater from time to time.
Volcanic tremor is at low to moderate levels, something that can change any time.

Etna volcano (Italy): violent eruptive episode, parts of SE crater collapse into dangerous pyroclastic flows

Sat, 23 Oct 2021, 10:52
10:52 AM | AUTORE: T
Etna volcano near the end of this morning's paroxysm (image: Montagnola webcam of INGV Catania)
Etna volcano near the end of this morning's paroxysm (image: Montagnola webcam of INGV Catania)
Current tremor signal showing the peak of this morning's paroxysm (image: INGV Catania)
Current tremor signal showing the peak of this morning's paroxysm (image: INGV Catania)
A strong paroxysm is in progress at the volcano. As suspected already last night by the presence of intermittent strombolian activity and the slowly rising tremor, this activity continued to evolve gradually throughout the night and early this morning.
Tremor reached high levels at 7.40 a.m., followed by a strong increase of explosive activity at the SE crater from 10.15 a.m.
Lava fountaining was observed to have started at around that time, and lasted until 12.20 p.m. It generated a dense ash plume that rose several kilometers and drifted east, producing ash falls in the area of Piedimonte and Linguaglossa.

The eruption was characterized by several collapse events on the eastern sides of the crater, which generated pyroclastic flows - hot turbulent avalanches of loose lava material, and extremely fast-moving and dangerous as everything in their path is being destroyed.
The first was observed at 10.49 a.m., when parts of the eastern crater wall broke into an avalanche heading towards the Valle del Bove and traveling about 1.5 km distance. Additional pyroclastic flows with similar mechanism took place at 11.02, 11.30 and/or 11.37, and 11.58 a.m.
A lava flow was erupted from the breached SE crater heading towards the east into the Valle del Bove as well.

Watch the eruption filmed by LocalTeam:

Volcanic tremor slowly rising

Update Fri 22 Oct 2021 16:09
Current tremor signal at Etna's ECPN station (image: INGV Catania)
Current tremor signal at Etna's ECPN station (image: INGV Catania)
In tandem with the reported increase of activity in form of strombolian explosions at the SE crater, volcanic tremor has been gradually rising.
Whether this is a first sign the volcano is heading towards another fire-fountaining episode, known as paroxysm, as it did more than 50 times this year alone so far, will be likely seen in the near future (hours to few days from now).
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